The flaring tool is a high-quality professional-grade instrument designed to last a lifetime. It's used in conjunction with a bench vise, and it's easy to set up and operate. As is the case with any flaring job, tubing prep is of utmost importance. You'll want to make sure your tubing is cut squarely, and the ID is reamed and OD is chamfered to remove any rough edges or chips. It's also very important that the end of the prepped tube is treated with a dab of antiseize compound to act as a lubricant. The rotating die head is mounted on a round boss and is held in place with a ball detent.